Alternatively, since pip itself is written in python, you can just call it with the python version you want to install the package for:

Copypython2.7 -m pip install foo

You have to point to the right python installation. A common method is to use pip (where conda Is not installed) directly from python, here an example:

/usr/local/bin/python3 -m pip install matplotlib

By this way, you are going to install matplotlib from /usr/local/bin/python3

EDIT

The cause of the problem, is that you are running the py file with a python environment different from the one that you have install the dependencies with.

You can antepone the env path in your py file using this line at the start of the script:

#!/usr/local/bin/python3

# Script

``

You have two options, but either way, you need to get easy_install-3.2. Since it doesn't seem to be packaged, you have to install it yourself. Fortunately that's easy. And you should also get python3-pkg-resources, which is packaged:

sudo apt-get install python3-pkg-resources
wget http://python-distribute.org/distribute_setup.py
sudo python3 distribute_setup.py

Now you can just use easy_install-3.2 to install Pyramid, or go ahead and install pip in Python3.

OPTION 1:

sudo easy_install-3.2 pyramid

OPTION 2:

sudo easy_install-3.2 pip
sudo pip-3.2 install pyramid

You have to use virtualenv otherwise all installations would go to default installed python.

What virtualenv will do is install multiple python versions having separate installed modules on the system and you can choose to run any version anytime you want. It's the default way of python world to manage different versions.

Also install virtualenvwrapper which simplifies usage of virtualenv.